Log-loading machine.



PATENTED MAY 12, 1903,

M. SGHMALTZ. [LOG LOADING MAGH'INE.

. APPLIOATION FILED OOTA, 1902.

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No. 727,849 PATENTBD MAY'IZ, 1908.

M. SGHMALTZ. LOG LOADING MACHINE.

APPLICATION I'ILBD 00:13.4, 1902. N0 MODEL. 4 sums-sum 2.

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No. 727,849. PATENTEDMAY 12, 1903.

M. SGHMALTZ.- LOG LOADING MACHINE.

APPLICATION FILED 00124, 1902.

N0 MODEL. 4 SHEETS-SHEET 3.

THE Nonms PETERS c0. Puowumo Patented May 12, 1903 MICHAEL sonMa'Lrz, or DULUTH, MINNESOTA.

LOG-LOADING QMAQHIN E.

SPECIFICATION forming part of Letters PatentNo. 727,849, dated May 12, 1903.

5 Application filed October 4. 1 902.

To all whom it may concern:

Be it known that 1, MICHAEL SCHMALTZ, a. citizen of the United States, residing at Duluth, in the county of St. Louis and State of Minnesota,haveinvented certain new and useful Improvements in Log-Loading Machines; and 'I do hereby declare the following to be a full, clear, and exact description of the inven-- tion, such as will enable others skilled in the art to make and use the same.

My invention relates to logloading machines, and has for its object the provision of a machine which may be passed by other cars on the same track and which will, when engaged in the operation of loading, have a low center of gravity and great stability and which may be readily taken apart, to a lim-' ited extent, to reduce height or width, to passnarrow defiles or low bridges, without the necessity of taking apart the more intricate or cumbersome portions of the machinery.

With these and other objects in view it consists of a derrick-frame provided with a derrick, a car within said frame adapted to roll on a railway-track, and means for raising said car off said track into a suspended position on said frame.

It also consists of certain other constructions, combinations, and arrangements of parts, as will be hereinafter more particularly described and claimed.

In the drawings, Figure l is a side elevation, partly in sectiomof my said invention. Fig. 2 is afront end elevation of the same, the load-hoisting cable being omitted. Fig. 3 is a bottom plan View, on an enlarged scale, of the derrick-frame sills forming part of my said invention. Fig. 4 is a vertical cross-section through one end of one of said sills and through one of the journalboxes therein. Fig. 5 is a top plan view, partlyin horizontal section, of my said invention, portions of the derrick guy-lines and all of the load-hoisting cable being omitted. Fig. 6 is a side eleva tion, on a reduced scale, of my said invention loaded on a logging-car, the sills of the derrick-frame being removed.

In the drawings, 1 is a derrick-supporting. frame, comprising sills 2 and 3, positioned, respectively,near opposite ends of said frame. At one end of said sill 2' is secured an upwardly-extending bracket 4, and at the opbeam 27.

Serial No. 125,942. (to model.

posite end of said sill is'secured a similar bracket 5. At one end of said sill 3 is secured an upwardlyextending bracket 6, and at the opposite end of said sill is secured a similar bracket '7. Upon said bracket 4 is erected a corner post or posts, preferably comprising the members 8 and 9, spaced apart by a spateing-post 10. Upon said bracket 5 is erected a corner post or posts, preferably comprising the members 11 and 12, spaced apart by a spacingpost 13. Upon said bracket 6 is erected acorner postor posts, preferably comprising the members 14 and 15, spaced apart by the spacing-post 16. 7 is erected acorner post or posts, preferably comprising the members 17 and 18, spaced apart bythe spacing-post 19. All of said posts are suitably secured to their supportingjbrackets by bolts20 or other or additional suitable means. Extending from said post 8 to the post 11 and supported by each of said posts is a transverse overhead beam 21, and extending from said post 9 to the post 12 and supported by each of the same is a transverse overhead beam 22, parallel with said beam 21 and spaced therefromby suitable spacing-blocks, or by the heads of said posts and 13, as desired. Extending from said post 14 to said post-17 and supported by each of the same is a transverse overhead beam 23, and extending from said post to said post 18 andsupported by each of said posts is a transverse overhead beam 24, parallel with said beam 23 and spaced therefrom by suitable spacing-blocks or by the heads of said posts 16 and 19, as desired. Extending from said post 9 'to said post 14 and supported by each of saidposts and preferably by brackets 25 extending therefrom is a longitudinal overhead beam 26 and a side Extending from said post 12 to said post 17' and supported thereon, preferably by brackets 25 extending therefrom, is a longitudinal overhead beam 28au'd aside beam 28. A car 29, provided with suitable supporting-wheels keyed, to shafts 30 and 31, respectively, and adaptedto normally rest upon the rails 32 and 33 of a railroad-track, is adapted to be raised into a suspended position with relation to said derrick-frame and to be supported thereon by means comprising powercylinders 34, 35, 36, and 37, respectively positioned near the four corners of said car,

Upon said bracket each of which cylinders is pivotally secured at its foot in any suitable manner to the frame of said car, preferably below the floor thereof. Each of said cylinders is provided at its upper end, as in the case of said cylinder 34, with a gland or packing-box 38. Each said cylinder is further provided with a contained piston and an upwardly-projectingpiston-rod the upper ends of which piston-rods are pivotally secured in any suitable manner to the said transverse overhead beams, as at 39, 40, 41, and 42, respectively. Mounted upon said car is a tank 43, adapted to contain oil, wa-

ter, or other suitable fluid. A suitable force-' pump 44 is connected'to said tank by a pipe 45, through which said pump is adapted to draw from said tank. Extending from said pump is an outflow-pipe 46, terminating in a safety-valve chamber 47, from which valvechamber a pipe 48 returns to said tank. A branch pipe 49 is connected to said pipe 46 and terminates in the chamber of four-way valve 50, of any suitable construction, from the chamber of which valve 50 extend three other pipes 51, 52, and 53, respectively, which pipe 51 is connected at its opposite end to said pipe 48 and which pipe 52 is connected directly or through suitable branch pipes 54 with the top of each of said cylinders and which pipe 53 is connected directly or through suitable branch pipes 55 with the bottom of each of said cylinders. A cut-off valve 56 is provided in each of said branch pipes 54, by which the feed may be cut off from the top of any of said cylinders, and a cut-off valve 57 is provided in each of said branch pipes 55, by which the feed may be cut off from the bottom of either of said cylinders. Said pump is further connected in any suitable manner with a steam-boiler 58 or other source of power whereby said pump may be operated. Said car is further equipped with any suitable hoisting-engine, preferably includ ing the steam-cylinders 59 and 60, a normally loose winding-drum 61, providedwith a suitable friction-clutch, and a normally loose winding-drum 62, provided with a suitable friction-clutch and means for driving the shafts of said drums, which hoisting-engine is well known to the art and not necessary to be particularly described herein. A normally loose sprocket-wheel 63 is journaled upon the shaft of one of said drums and provided with a suitable friction-clutch 64 and is connected by a belt 65 with a sprocket-wheel 66, keyed to a shaft 67, journaled in suitable bearings depending from the sills of said car, upon which shaft 67 are also keyed two other sprocket-wheels 68 and 69, which wheel 68 is connected by a belt 70 with a sprocket-wheel 71, keyed upon the shaft 30 of the forward su'pportingwheels of said car, and which wheel 69 is connected by a belt 72 with a sprocket-wheel 73, keyed to the shaft 31 of the rear supporting-wheels of said car, by which means said car may be driven along said track by said hoisting-engine. Said valve 50 is provided with a valve-stem 74, preferably terminating in a crank-handle 75, by means of which said valve may be operated. A derrick, preferably comprising derrick-poles 76 and 77, converging and secured together, preferably by a cap 78, at their outward ends, is secured to said posts 8 and 11, preferably by brackets 79 and 80 and sockets 81 and 82, which derrick is further supported and adapted to be raised or lowered by guylines 83 and 84, secured in any suitable manner, as by terminal hooks 85, to the outer end of said derrick and carried back over antifriction-rollers 86 and 87 and downward and secured to Windlass-d ru ms 88 and 89, respectively. Said Windlass-drums are preferably keyed to a common shaft 90, journaled in brackets 91 and 92, secured, respectively, to said posts 15 and 18, to which shaft is also preferably keyed a gear-wheel 93, adapted to engage a worm 94,,journaled in suitable brackets to said posts 17 and 18 and provided with an operating crank-handle 95. Said derrick is further provided with one or more suitable hoisting-sheaves 95 and hoisting-cables 95 well known to the art and not necessary to be described herein. The said sills 2 and 3 extend transversely of said derrickframe and are each formed near each of their ends with forward and rearward angular extensions, as at 96, 97, 98, and 99, the upper faces of which extensions incline toward the said track-rails. Said sills are further preferably hollow and open underneath and formed with a plural number of internal stiffening ribs or partitions 100. Rollers 101 are also preferably journaled within said sills, near each end thereof, in any suitable journalbearings 102 inserted therein and adapted to have a limited vertical movement under spring tension, which bearings are retained in said sills by bolts 103, secured to said bearings and passing loosely through said sills and provided with retaining-nuts at their upper ends. The upper faces of each of said bearings are preferably formed with a shoulder 103*, adapted to engage the foot of a coiled spring 103", and a flanged loose collar 103 is mounted on each of said bolts and adapted to engage the head of said spring, the construction being such that said rollers are adapted to rest upon said track-rails and support the weight of said derrick and derrickframe, but to recede wholly within said housings when the weight of said car is put upon said derrick-frame, at which time the said sills and their angular extensions will rest immediately upon said track-rails. A suitable number of depending guide-arms 104 are preferably bolted to the sills of said car and flared outwardly at their lower ends and are adapted to straddle the said derrick-frame sills, near each end thereof, and to insure the fall of said car from a raised position into its designed lower position with relation to said sills other guide-arms 105 are bolted to the sills of said car and extend in a lateral direc tion and are adapted at their outer. ends to engage vertical guideways 106,- formed in said corner-posts at the respective corners of said derrick-frame, which arms 105 are adapted to prevent the independent swaying of said car Within said frame andto operate as looking means to preserve the longitudinal relation of said car to said frame. An antifriction roller 107 is preferably journaled in brackets secured to the front transverse beam or bolster of said car, under which the loadhoisting cable of said derrick may when said car is raised be carried back and attached to empty cars to draw them forward through said derrick-frame and over the said inclined portions of said sills. Said sills 2 and 3 are also preferably formed with depending fingers 108, near each endthereof, adapted to project between the trackrails to prevent lateral movements of said sills with relation to said rails.

If desired, the car included in my said invention may be raised and another car 109 drawn thereunder and provided with deckrails 110, upon which my said car may then be lowered. The sills 2 and 3 may then be unbolted from said derrick-frame, and said frame may be slightly raised to clear the same.

"Said car 109 may then be moved a short dis tance to clear said sills, which may then be picked up by said derrick and laid upon my said car. My said car and derrick-frame may then, if desired, be transported on said car 109 or may be moved over a train of cars similar to said car 109 and siinilarlyequipped with deck-rails.

While I have shown certain forms of rollers, braces, and other parts of my said invention, it is obvious that said forms may be radically modified or altered and equivalent means employed within the scope of my said invention, and I do not, therefore, desire to limit myself to the exact'details'of construction shown in the drawings. The operation of my said invention is as follows: Said frame will normally rest upon said rollers 101, which will carry its weight, and the movement of said car 29 along said track in either direction will cause said frame to move in the same direction; If it is de-' sired to lift the ends of said sills over obstacleslying upon the road-bed, pressure is introduced by means of said pump'into said Vertical cylinders below the pistons contained therein, which will force said pistons and piston-rods upward, thereby raisin g said derrickframe off the track and effecting the'cleai ance of said obstacles by said sills, after which said pressure may be relieved and said frame lowered. Upon arriving at the station for loading cars said car 29 is raised clear of'the track by introducing pressure by means of said pump into the upper ends of said vertical cylinders above said pistons, which will cause said cylinders to travel upon said piston-rods, drawing the car up with them, the weight of the car and derrick-frame causing suspended car is again .loweredto the trackrails, but preferably not so as to relieve said frame of its'weight. The hoisting-cable is then employed to load said empty car.. If

change is desired in the angle of said derrick,

said worm 94 is operated, and said derrick is raised or lowered, as desired, the guy-lines 83 and 84 only contacting with said rolls 86 when said derrick-is at acomparatively low angle. In moving along said track, said hoisting-engine through said sprocket-wheels and belts may, if desired, furnish the propelling power. In supplying pressure to the tops of said vertical cylinders the pump draws the liquid from said tank through the pipe 45 and forces it through the pipes 46 and 49, the Valve 50, the pipes 52 and 54 into each of said cylinders. If the derrick frame is tilted slightly on account of unevennessof the roadbed or if there is inore weight at one corner of said car than another, the supply of pressure to certain of the cylinders may be checked or cutoff by saidvalves 54 and continued to the other cylinder or cylinders until the ievel of said car is obtained. Ifthe pressure from the pump be too great, the excess will pass through said safety-valve 47'and the discharge-pipe 48 to said tank, While pressure is being supplied through'the pipe 52 it will be cut off by said valve 50 fromthe pipe 53, which will then, however,

be adapted to discharge through said valve 50 and the pipes 51 and 48 into. said tank. In similar manner pressure may be furnished to all and any of said vertical cylinders, atthe lower ends thereof, through the .pipe 53, at which time the pipe 52 may discharge.

I am aware that attempts have been made to construct a practical log-loading car in which the car-supporting trucksv might be pivotally raised to permit passage of an empty car' beneath them, but in such construction it is obvious that the weight of the hoisting? engine is always carried a considerable .distance above the ground and adds to the danger of tipping the machine,whereas the weight of theengine in my said construction is during the load-hoisting operation low, and tends to ballast the machine, and affords a very much greater degree of safety in reaching far out to the side ofthe.machineafter'logs or other material to load. It is obvious also'that the derrick-frame formingpart of my said construction may be readily taken apart for transportation through narrow defiles or under low bridges without disturbing therengine, in which regard it' possesses great advantages.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a log-loading machine, the combination of a derrick-frame, having a derrick mounted thereon, a car within said frame and attached thereto, means for raising said car into suspended position on said frame, and means for operating the derrick substantially as described.

2. In a log-loading machine the combination of a derrick-frame, having a derrick mounted thereon, a car within said frame and attached thereto, means for raising said car into suspended position on said frame, means carried by said car for operating said raising means, and means carried by said car for operating said derrick substantially as described.

3. In a log-loading machine, the combination of a derrick-frame, having sills adapted to extend across both the rails of a railwaytrack and provided with inclined extensions leading up from the track-rails to the tops of said sills, a car Within said frame, adapted to normally rest upon said track-rails and connected with said derrick-frame, means for raising said car into suspended position upon said frame, a derrick mounted on said frame, means carried by said car for operating said raising means, and means carried by said car for operating said derrick, substantially as described.

4. In a log-loading machine, the combination of a derrick-frame having sills removably secured thereto adapted to extend across both the rails of a railway-track and provided with spring-controlled rollers adapted to normally rest upon said track-rails and further provided with inclined lateral extensions leading from said rails to the tops of said sills respectively, a car within said frame and attached thereto and provided with individual trucks adapted to normally rest upon said track-rails, means for raising said car into suspended position on said frame, or for raising said frame into suspended position on said car, means carried by said car for operating said raising means, a derrick carried by said log-loading machine, and means carried by said car for operating said derrick, substantially as described.

5. In a log-loading machine, the combination of a derrick-frame, adapted to bridge a railway-track, a car Within said frame, provided with individual trucks adapted to normally rest upon said track, telescopic means connecting said car with the overhead portion of said frame, means carried by said car for operating said telescopic means to raise said car into suspended position on said frame, or to raise said frame into suspended position on said car, a derrick carried by said log-loading machine, and means carried by said car for operating said derrick, substantially as described.

6. In a log-loading machine, the combination of a derrick-frame adapted to bridge a railway-track, a car, within said frame, provided with individual trucks adapted to normally rest upon said track, telescopic means, comprising a plural number of vertical cylinders each provided with a contained piston and outwardly-extended piston-rods, attaching said car, at relatively different points, to the overhead portion of said frame, means for operating said telescopic means, comprising a pump carried by said car, pipes connecting said pump with the upper and lower ends respectively of each of said cylinders a circuitcontrolling valve adapted to control the direction of flow in said pipes, a cut-ofi valve interposed in each of the pipes near the respective cylinders, whereby the supply or the exhaust may be arbitrarily cut off with respect to any one of said cylinders, a source of power-supply connected with said pipes through said pump, means carried by said car for operating said pump, a derrick mounted upon said frame, and means carried by said car for operating said derrick substantially as described.

7. In a log-loading machine, the combination of a derrick-frame adapted to bridge a railway-track and provided with transverse sills containing supporting-rollers normally projecting therefrom under spring tension and adapted to roll upon said track, a car within said frame and attached thereto by vertically-arranged telescopic means, means carried by said car for operating said telescopic means to raise said car into suspended position on said frame, or to raise said frame into suspended position on said car, guiding means for limiting the swaying movement of said car within said frame, a derrick mounted on said frame, means carried by said car for operating said derrick, means carried by said frame for adjusting the vertical angle of said derrick and comprising a transverse shaft journaled in brackets secured to said frame, windlasses secured thereto for winding up the guy-lines of said derrick, a gear-wheel keyed to said shaft, and a Worm directed at an angle to said gear-Wheel and engaging the same and journaled in brackets to said frame, substantially as described.

In testimony whereof I hereunto affix my signature in presence of two witnesses.

MICHAEL SOI-IMALTZ.

Witnesses:

JAMES T. WATSON, WELLINGTON M. BLEVVETT.

IIO 

